#判断strx是否为纯数字字符，是则返回True，否则 返回False lists=["abc","def","what"] strx="".join(lists) #默认直接拼接可遍历的对象，元素只可为 str，中间不会加入其他字符或删除其他字符 stry=",".join(lists) #拼接时在2元素str间添加 ""引号中指定的 符号，这里是添加逗号

by producing its Agile interpretation of what the overseers were asking for. That might include lists of user stories, burndowns, definitions of done, product roadmaps, and, well, in the government,

easily prioritize work in the context of global goals. ii. REDUCE BATCH SIZES1. Another key component to creating smooth and fast flow is performing work in small batch sizes. 2. Large batch sizes